Thetford 15844 (Superseded by 50326) Waste Holding Tank Treatment – Biological, Unscented, 19 oz Bottle

Product Overview

The Thetford 15844 Waste Holding Tank Treatment (now superseded by 50326) is a biological tank treatment designed to break down waste and prevent toilet paper buildup in RV black water tanks and drain lines. This formaldehyde-free, unscented formula helps maintain a cleaner, more efficient holding tank system without harsh chemicals.

Important Policy Notice

• Non-Returnable Item: Chemicals are not eligible for return once purchased.

Key Features & Benefits

• Direct Replacement: Supersedes Thetford 15844 with updated part 50326
• Biological Formula: Breaks down waste and tissue naturally
• Prevents Buildup: Helps reduce clogs in tanks and drain lines
• Formaldehyde-Free: Safer alternative to harsh chemical treatments
• Unscented: Ideal for users sensitive to fragrances
• Improves System Efficiency: Supports smoother tank operation
• Easy to Use: Add directly to black water tank

Specifications

• Part Number: 15844 (Superseded by 50326)
• Product Type: Holding Tank Treatment
• Formula Type: Biological
• Scent: Unscented
• Formaldehyde: None
• Lubricant Included: No
• Container Size: 19 Ounce Bottle
• Quantity: Single

Fits These Applications

• RV black water holding tanks
• RV drain lines and waste systems
• Compatible with most RV sanitation systems

Common Issues This Product Solves

• Toilet paper and waste buildup in tank
• Slow draining or partial clogs
• Poor tank performance over time
• Need for eco-friendly or formaldehyde-free treatment

What’s Included

• (1) 19 oz Bottle of Thetford 50326 Waste Holding Tank Treatment (Replacement for 15844)

Usage Overview

1. Add recommended amount directly into the black water tank
2. Add water as needed to activate treatment
3. Allow product to work between dumps
4. Use regularly for best results

FAQs

Q: Is Thetford 50326 the same as 15844?
A: Yes—50326 is the direct replacement for the discontinued 15844.

Q: Does this have a scent?
A: No, this is an unscented formula.

Q: Is it safe for RV systems?
A: Yes, it is designed for RV black water tanks and drain lines.

Q: Can this product be returned?
A: No—chemical products are non-returnable once purchased.

Why Choose Thetford?

Thetford is a trusted leader in RV sanitation, offering reliable, environmentally conscious solutions that keep your holding tank system clean and functioning properly.